Improvement in fire and water proof roofs



LONG.

"Fire andy WaterProof`Roofs. 143,581.

Patented 0c1.4,873.

1... .md F

/// Wrusssasg UNITED STATES PATENT OFFICE.

JOSEPH LONG, OF MEOHANICSBURG, PENNSYLVANIA.

' IMPROVEMENT IN FIRE AND WATER PROOF ROOFS.

Specilication forming part of Letters Patent No. 143,581, dated October 14, 1873; application filed August 27,1873.

To aLl whom #may concern:

Be it known that I, JOSEPH LONG, of Mechanicsburg, Cumberland county, Y.Pennsylvania, have invented certain Improvements in Fire and Water Proof Roofs, of Which the following is a specification:

Figure l is a perspective View of the invention. Fig. 2 is a sectional view of the invention.

A A A are boards of a good quality of White pine, cypress, or other soft Wood, six inches in Width, and one inch in thickness. B B B are grooves or rabbets sunk in these boards onefourth of an inch in depth and four and onehalf inches in Width, thus allowing an elevated rmargin or edge on each side of each board of Width, or a zinc cap, O. This completes a good Water-proof roof. To make it fire-proof, the Whole surface is covered with a cement composed of equal portions of common paint and gum-shellac, which is then sanded in the usual Way of sanding paint. This cement covering B G thus prepared Vbecomes very hard and solid, and is perfectly fire and Water-proof.

What I claim as my invention, and desire to secure by Letters Patent, is-

A' fire and Water proof roof composed of the boards A A A with the rabbets or grooves B B B sunk in the one side thereof, forming thereby the elevated edges or margins E E,

which are closely joined and the joints covered With Wooden caps D or zinc caps C, the boards thus joined being fastened to the laths F F of the building, and the whole roof thus prepared covered with a cement composed of equal portions of common paint and gum-shellac sanded and applied as shown at-B G, the Whole combined, constructed, and used in the manner and for the purposes herein set forth. JOSEPH LONG. Witnesses:

F. E. BELTZHoovEE, HARRY HOOK. 4 

